BMW M54 DISA Housing O-Rings
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- O-Ring Selection Guide
- Customer Reviews (3)
The O-rings on the BMW M54 DISA valve housings are common failure items. O-ring failure can cause lean engine service codes, and poor idle quality. German Auto Solutions offers three grades of replacement O-rings for the DISA valves on BMW M54 engines.
All O-Rings come with a tube of synthetic lube!
Note - The factory O-ring on the M54 DISA valve is molded into the housing, which means that the factory seal needs to be scraped out in order to install our replacement O-ring.
3 Reviews for BMW M54 DISA Housing O-Rings
Preventative Maintenance for 2004 BMW 330i ZHP - Saturday, February 3, 2024Been doing preventative maintenance and refresh on my 2004 BMW 330i ZHP with ~150,000 miles. Noticed that the DISA still had its original molded seal, which the previous owner had wrapped it in Teflon tape. The engine has been running fine, but I went ahead and ordered the 2-pack of silicon o-rings for peace of mind. The installation wasn't difficult at all. The most tedious part is picking the old molded seal out! It's nice that they include the pillow-pack of lubricant for the o-ring. Everything went back together easily and the engine is running smoothly. Thanks!
Ted (Theodore) Smith
Fix rough idle E46 330i - Sunday, December 24, 2023Ordered O-Rings in preparation for removal/inspection/replacement of DISA.
Order arrived ahead of schedule, price plus shipping fair and reasonable.
Fixes uncommon vacuum leak for 2004 BMW X3 3.0L M54 - Monday, May 31, 2021The Fluorosilicone DISA O-Ring really helps seal the DISA valve into the intake manifold. When properly installed, it stops an overlooked and recurring vacuum leak from the DISA valve. This also helps to eliminate the DISA valve's possibility to cause the "System too lean" P0171 and P0174 codes from reappearing on an OBD2 scanner. This O-Ring is strongly recommended to replace the stock custom molded gasket on the M54 DISA valve.